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Reports characters that cannot be displayed because of the current document encoding.
<p>Examples:</p>
<ul>
  <li>If you type international characters in a document with the <b>US-ASCII</b> charset, some characters will be lost on save.</li>
  <li>If you load a <b>UTF-8</b>-encoded file using the <b>ISO-8859-1</b> one-byte charset, some characters will be displayed incorrectly.</li>
</ul>

<p>You can fix this by changing the file encoding
either by specifying the encoding directly in the file, e.g. by editing <code>encoding=</code> attribute in the XML prolog of XML file,
  or by changing the corresponding options in <b>Settings | Editor | File Encodings</b>.</p>

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